Official name COSMOS 807
Alternative name Cosmos-807
Cospar ID 1976-022A
Norad ID 8744
Launch date 1976-03-12
Launch site PKMTR
Launch vehicle Kosmos-3M
Country/Organization USSR / Russia
Type application Radar calibration
RCS size LARGE
Decay date ON ORBIT
Period (min) 99.51
Inclination (deg) 82.92
Perigee (km) 368
Apogee (km) 1103
Eccentricity 0.499660095173351
Mean motion (revs. per day) 14.4709074464878
Semi-Major axis (km) 7113.635
Raan (deg) 254.7751
Arg of perigee (deg) 191.2775
Shape Sphere
Mass (kg) 644.2
Height (m) 2
Width (m) 2
Depth (m) 2
Span (m^2) 2
Contractors Yuzhnoye
Propulsion None
Configuration 2 m sphere
Power Solar cells, batteries

The Taifun-1 or Vektor were active radar calibration satellites employed by the USSR and later Russia.

They consisted of a 2 m diameter spherical with a solar cell covered surface and had a launch weight of about 500 kg. The Vektor satellites were produced by Yuzhnoye and were launched by Kosmos-3M rockets.

There were two series: Taifun-1A and Taifun-1V. Taifun-1A satellites had inclinations of 51° and 66° while Taifun-1V satellites had inclinations of 51°, 66° and 83°.

Satellite COSPAR Date LS Launch Vehicle Remarks
COSMOS 660 1974-044A 1974-06-18 PKMTR Kosmos-3M
COSMOS 687 1974-076A 1974-10-11 PKMTR Kosmos-3M
COSMOS 752 1975-069A 1975-07-24 PKMTR Kosmos-3M
COSMOS 807 1976-022A 1976-03-12 PKMTR Kosmos-3M
COSMOS 822 1976-049A 1976-05-28 PKMTR Kosmos-3M
COSMOS 891 1977-006A 1977-02-02 PKMTR Kosmos-3M
COSMOS 930 1977-067A 1977-07-19 PKMTR Kosmos-3M
COSMOS 933 1977-070A 1977-07-22 PKMTR Kosmos-3M
COSMOS 1006 1978-046A 1978-05-12 PKMTR Kosmos-3M
COSMOS 1075 1979-010A 1979-02-08 PKMTR Kosmos-3M
COSMOS 1169 1980-023A 1980-03-27 PKMTR Kosmos-3M
COSMOS 1238 1981-003A 1981-01-16 PKMTR Kosmos-3M
COSMOS 1263 1981-033A 1981-04-09 PKMTR Kosmos-3M
COSMOS 1310 1981-095A 1981-09-23 PKMTR Kosmos-3M
COSMOS 1450 1983-027A 1983-04-06 PKMTR Kosmos-3M
COSMOS 1508 1983-111A 1983-11-11 PKMTR Kosmos-3M
COSMOS 1534 1984-007A 1984-01-26 PKMTR Kosmos-3M
COSMOS 1631 1985-018A 1985-02-27 PKMTR Kosmos-3M
COSMOS 1788 1986-083A 1986-10-27 PKMTR Kosmos-3M
COSMOS 1902 1987-103A 1987-12-15 PKMTR Kosmos-3M
COSMOS 1958 1988-060A 1988-07-14 PKMTR Kosmos-3M
COSMOS 2027 1989-045A 1989-06-14 PKMTR Kosmos-3M
COSMOS 2098 1990-078A 1990-08-28 PKMTR Kosmos-3M
COSMOS 2292 1994-061A 1994-09-27 PKMTR Kosmos-3M